Comprehensive performance testing device for hydrogen fuel cell

Abstract

The utility model discloses a hydrogen fuel cell comprehensive performance testing device, which relates to the technical field of fuel cells, and comprises a device main body, a bracket, a pressing plate, a limiting rod and an adjusting head, a power socket is embedded in one side of the device main body, the top of the device main body is welded with the bottom of the bracket, and a first cylinder is mounted at the top of the bracket; a first pressure sensor is embedded in the telescopic end of the bottom of the first air cylinder, the bottom of the first pressure sensor is bonded to the surface of the top of a pressing plate, and the telescopic end of the first air cylinder can drive the pressing plate to downwards extrude a battery body while moving downwards; meanwhile, the telescopic end of a second air cylinder is driven by an air pump to push clamping blocks on the two sides of the battery body to extrude the two sides of the battery body, the telescopic end of a third air cylinder shrinks after the clamping blocks are in place, then the clamping heads are driven by an adjusting head to conduct pressure testing on the front and back portions of the battery body, and the situation that the pressure is too concentrated is avoided; therefore, the accuracy of the pressure resistance detection of the battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a comprehensive performance testing device for hydrogen fuel cells. Background Art

[0002] In order to detect whether the various performance of the fuel cell meets the requirements, it is necessary to simulate the performance of the fuel cell under different pressure states. After searching, the Chinese patent authorization number CN211530091U discloses a fuel cell performance testing device. The base of the device is provided with a moving component that can control the movement of the movable end plate and self-lock. The moving component includes a clamping component that controls the movable end plate to approach the fixed end plate and self-locks, and a recovery component that always has a tendency to move the movable end plate away from the fixed end plate. It can prevent the end plate from being displaced due to vibration generated during operation, resulting in errors in the operation of the fixture. However, when the device performs a pressure test on the fuel cell, it can only apply pressure to the fuel cell in a single direction by moving the movable end plate, which causes the pressure to be concentrated on both sides of the fuel cell. The other four sides of the fuel cell are not subjected to pressure testing, which causes the pressure on the battery to be too concentrated, which easily affects the accuracy of the battery pressure resistance test. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides a hydrogen fuel cell comprehensive performance testing device, which solves the problem proposed in the background technology that when the fuel cell is pressure tested, pressure can only be applied to the fuel cell in a single direction, resulting in excessive concentration of pressure on the battery, which easily affects the accuracy of the battery pressure resistance test.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydrogen fuel cell comprehensive performance testing device, including a device body, a bracket, a pressure plate, a limit rod and an adjusting head, a power socket is embedded on one side of the device body, and the main top of the device is welded to the bottom of the bracket, a first cylinder is installed on the top of the bracket, a first pressure sensor is embedded at the telescopic end of the bottom of the first cylinder, the bottom of the first pressure sensor is bonded to the top surface of the pressure plate, a battery body is placed under the pressure plate, clamping blocks are provided on the left and right sides of the battery body, a second pressure sensor is embedded on the surface of the clamping block, the clamping block is mounted on the outside of the telescopic end of the second cylinder, the second cylinder is installed at both ends of the top of the device body by screws, a third cylinder is embedded on both sides of the clamping block, one end of the third cylinder is connected to the adjusting head, and one end of the adjusting head is embedded with a clamping head, and an air pump is installed on one side of the bracket.

[0005] Preferably, rectangular holes are provided on both sides of the bracket, and the rectangular holes are in sliding contact with the surfaces on both sides of the clamping block. A groove is provided inside the clamping block, and the groove is slidably connected to the outer wall of the limit rod. The thickness of the clamping block is less than the thickness of the battery body, which is conducive to avoiding interference of the clamping block with the limit rod while sliding.

[0006] Preferably, there are two limit rods, the tops of the two limit rods are welded to the top of the bracket, the bottoms of the limit rods are welded to the top of the device body, and the outer walls of the limit rods are slidably connected to the two ends of the pressure plate. The limit rods are used to help the surface of the pressure plate to remain horizontal and then help the bottom surface of the pressure plate to fit the surface of the battery body, thereby ensuring uniform force on the top of the battery body.

[0007] Preferably, an electric heating plate is embedded in the top of the device body, the electric heating plate is electrically connected to the temperature controller, and electric heating coils are provided inside the electric heating plate and the pressure plate, and a temperature display module is provided on the surface of the temperature controller.

[0008] Preferably, one end of the adjusting head is rotatably connected to the telescopic end of the third cylinder, and the maximum rotation angle of the adjusting head is one hundred and eighty degrees. A pressure sensor is provided at the end of the clamping head at the other end of the adjusting head, and the pressure sensor is connected to the pressure controller. By rotating the adjusting head, the clamping head can be moved to the other side of the third cylinder, thereby facilitating pushing the battery body from the front to the bottom of the pressure plate.

[0009] The utility model provides a hydrogen fuel cell comprehensive performance test device.

[0010] Beneficial effects:

[0011] (1) A hydrogen fuel cell comprehensive performance test device, when in use, the battery body is placed at the bottom of the pressure plate, and the first cylinder drives the telescopic end to move downward under the drive of the air pump. The telescopic end of the cylinder drives the pressure plate downward to squeeze the battery body while moving downward, and at the same time, the telescopic end of the second cylinder drives the clamping blocks on both sides of the battery body under the drive of the air pump to squeeze the two sides of the battery body. When the clamping blocks are in place, the telescopic end of the third cylinder will shrink, and then drive the clamping head through the adjustment head to perform pressure test on the front and back of the battery body, which is conducive to making each side of the battery body be subjected to pressure test, thereby helping to avoid excessive pressure concentration, thereby helping to improve the accuracy of battery pressure resistance detection.

[0012] (2) In the hydrogen fuel cell comprehensive performance testing device, after the pressure plate moves downward, the bottom surface will fit with the surface of the battery body, and then the bottom of the battery body will fit closely with the surface of the electric heating plate, and then the battery body can be heated by the internal motor heating coil, which is conducive to testing the high temperature resistance performance of the battery.

[0013] This solves the problem that when the fuel cell is pressure tested, pressure can only be applied to the fuel cell in a single direction, resulting in excessive pressure concentration on the battery, which can easily affect the accuracy of the battery pressure resistance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0016] Figure 3 This is a schematic structural diagram of the second pressure sensor of the present utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the clamping block of the utility model;

[0018] Figure 5 It is a side view structural diagram of the utility model.

[0019] In the figure, 1. device body; 2. power socket; 3. bracket; 4. first cylinder; 5. first pressure sensor; 6. pressure plate; 7. limit rod; 8. second pressure sensor; 9. air pump; 10. second cylinder; 11. temperature controller; 12. clamping block; 13. pressure controller; 14. third cylinder; 15. adjusting head; 16. clamping head; 17. battery body; 18. electric heating plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1:

[0022] See also Figure 1-5, a hydrogen fuel cell comprehensive performance test device, including a device body 1, a bracket 3, a pressure plate 6, a limit rod 7 and an adjusting head 15, a power socket 2 is embedded on one side of the device body 1, and the main top of the device is welded to the bottom of the bracket 3, a first cylinder 4 is installed on the top of the bracket 3, and a first pressure sensor 5 is embedded at the telescopic end of the bottom of the first cylinder 4, and the bottom of the first pressure sensor 5 is bonded to the top surface of the pressure plate 6, a battery body 17 is placed under the pressure plate 6, and a clamping block 12 is provided on the left and right sides of the battery body 17, and a second pressure sensor 8 is embedded on the surface of the clamping block 12, and the clamping block 12 is mounted on the outside of the telescopic end of the second cylinder 10, and the second cylinder 10 is mounted on both ends of the top of the device body 1 by screws, and a third cylinder 14 is embedded on both sides of the clamping block 12, one end of the third cylinder 14 is connected to the adjusting head 15, and a clamping head 16 is embedded at one end of the adjusting head 15, an air pump 9 is installed on one side of the bracket 3, and rectangular holes are opened on both sides of the bracket 3, and rectangular holes are opened on both sides of the bracket 3. The hole groove is in sliding contact with the surfaces on both sides of the clamping block 12, and a groove is provided inside the clamping block 12, and the groove is slidably connected to the outer wall of the limit rod 7. The thickness of the clamping block 12 is less than the thickness of the battery body 17. When the device is in use, the battery body 17 is placed on the bottom of the pressure plate 6, and the first cylinder 4 drives the telescopic end to move downward under the drive of the air pump 9. The telescopic end of the cylinder drives the pressure plate 6 downward to squeeze the battery body 17 while moving downward. At the same time, the telescopic end of the second cylinder 10 drives the clamping blocks 12 on both sides of the battery body 17 under the drive of the air pump 9 to squeeze the two sides of the battery body 17. When the clamping block 12 is in place, the telescopic end of the third cylinder 14 will contract, and then drive the clamping head 16 to perform pressure test on the battery body 17 forward and backward through the adjusting head 15, which is beneficial for each surface of the battery body 17 to be subjected to pressure test, thereby helping to avoid excessive pressure concentration, thereby helping to improve the accuracy of battery pressure resistance detection.

[0023] Example 2:

[0024] There are two limit rods 7, the tops of the two limit rods 7 are welded to the top of the bracket 3, and the bottoms of the limit rods 7 are welded to the top of the device body 1, and the outer walls of the limit rods 7 are slidingly connected to the two ends of the pressure plate 6. The limit rods 7 are used to facilitate the surface of the pressure plate 6 to remain horizontal and descend, and further facilitate the bottom surface of the pressure plate 6 to fit the surface of the battery body 17, thereby ensuring uniform force on the top of the battery body 17.

[0025] Example 3:

[0026] An electric heating plate 18 is embedded in the top of the device body 1, and the electric heating plate 18 is electrically connected to the temperature controller 11. Electric heating coils are provided inside the electric heating plate 18 and the pressing plate 6. A temperature display module is provided on the surface of the temperature controller 11. After the pressing plate 6 moves downward, the bottom surface will fit with the surface of the battery body 17, and then the bottom of the battery body 17 will fit tightly with the surface of the electric heating plate 18, and then the battery body 17 can be heated by the internal electric heating coil, which is beneficial to testing the high temperature resistance of the battery.

[0027] Working principle: By rotating the adjusting head 15, the clamping head 16 can be moved to the other side of the third cylinder 14, which makes it easier to push the battery body 17 from the front to the bottom of the pressure plate 6. The first cylinder 4 drives the telescopic end downward under the drive of the air pump 9. When the telescopic end of the cylinder moves downward, it will drive the pressure plate 6 downward to squeeze the battery body 17. At the same time, the telescopic end of the second cylinder 10 will push the clamping blocks 12 on both sides of the battery body 17 under the drive of the air pump 9 to squeeze the two sides of the battery body 17. When the clamping blocks 12 are in place, the telescopic end of the third cylinder 14 will retract. , and then the adjusting head 15 drives the clamping head 16 to perform pressure testing on the front and back of the battery body 17, which is beneficial for each surface of the battery body 17 to be subjected to pressure testing, thereby helping to avoid excessive concentration of pressure, thereby helping to improve the accuracy of the battery pressure resistance test. After the pressure plate 6 moves downward, the bottom surface will fit with the surface of the battery body 17, and then the bottom of the battery body 17 will fit closely with the surface of the electric heating plate 18, and then the battery body 17 can be heated by the internal motor heat coil, which is beneficial for testing the high temperature resistance of the battery.

[0028] The components of the utility model, including 1. device main body; 2. power socket; 3. bracket; 4. first cylinder; 5. first pressure sensor; 6. pressure plate; 7. limit rod; 8. second pressure sensor; 9. air pump; 10. second cylinder; 11. temperature controller; 12. clamping block; 13. pressure controller; 14. third cylinder; 15. adjusting head; 16. clamping head; 17. battery body; 18. electric heating plate, are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it should be understood that although this specification is described in terms of implementation methods, not each implementation method contains only an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hydrogen fuel cell comprehensive performance testing device, characterized by: The invention comprises a device body (1), a bracket (3), a pressure plate (6), a limit rod (7) and an adjusting head (15); a power socket (2) is embedded on one side of the device body (1), and the top of the device body is welded to the bottom of the bracket (3); a first cylinder (4) is installed on the top of the bracket (3); a first pressure sensor (5) is embedded at the telescopic end of the bottom of the first cylinder (4); the bottom of the first pressure sensor (5) is bonded to the top surface of the pressure plate (6); a battery body (17) is placed under the pressure plate (6); the battery body (17) ) are provided with clamping blocks (12) on the left and right sides, and a second pressure sensor (8) is embedded on the surface of the clamping block (12). The clamping block (12) is mounted on the outside of the telescopic end of the second cylinder (10). The second cylinder (10) is installed on both ends of the top of the device body (1) by screws. A third cylinder (14) is embedded on both sides of the clamping block (12), and one end of the third cylinder (14) is connected to an adjusting head (15), and one end of the adjusting head (15) is embedded with a clamping head (16). An air pump (9) is installed on one side of the bracket (3).

2. A hydrogen fuel cell comprehensive performance testing device according to claim 1, characterized in that: Rectangular holes are provided on both sides of the bracket (3), and the rectangular holes are in sliding contact with the surfaces on both sides of the clamping block (12). A groove is provided inside the clamping block (12), and the groove is slidably connected to the outer wall of the limiting rod (7). The thickness of the clamping block (12) is less than the thickness of the battery body (17).

3. A hydrogen fuel cell comprehensive performance testing device according to claim 1, characterized in that: Two limiting rods (7) are provided, the tops of the two limiting rods (7) are welded to the top of the bracket (3), the bottoms of the limiting rods (7) are welded to the top of the device body (1), and the outer walls of the limiting rods (7) are slidably connected to both ends of the pressure plate (6).

4. A hydrogen fuel cell comprehensive performance testing device according to claim 1, characterized in that: An electric heating plate (18) is embedded on the top of the device body (1), the electric heating plate (18) is electrically connected to the temperature controller (11), and electric heating coils are provided inside the electric heating plate (18) and the pressing plate (6).

5. The hydrogen fuel cell comprehensive performance testing device according to claim 1, characterized in that: One end of the regulating head (15) is rotatably connected to the telescopic end of the third cylinder (14), and the maximum rotation angle of the regulating head (15) is one hundred and eighty degrees. A pressure sensor is provided at the end of the clamping head (16) at the other end of the regulating head (15), and the pressure sensor is connected to the pressure controller (13).

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